Utility Providers for ZIP Code 37866

Union County · 4 utility types covered · Updated April 2026

ZIP code 37866 is located in Union County, Tennessee. This area is served by 17 utility providers across 4 categories. The average residential electricity rate here is 12.0¢/kWh. 85% of households use electricity as their primary heating fuel.

Estimated monthly utility costs

$293/month

$52 less than Tennessee avg $90 less than national avg
This ZIP State avg National avg
Electric $175/mo
37866
$175
Tennessee
$177
National
$166
Natural gas $75/mo
37866
$75
Tennessee
$135
National
$173
Water & sewer $43/mo $10 more
37866
$43
Tennessee
$33
National
$44

Cost estimates from U.S. Census ACS 5-year data · Shorter bar = lower cost

Search any address for detailed utility information →

Electric

City of Clinton - (TN)
City of LaFollette
Knoxville Utilities Board
Powell Valley Electric Coop

Water

HALLSDALE-POWELL U.D.
LEADMINE BEND WATER ASSOC.
LUTTRELL-BLAINE-CORRYTON U.D.
MAYNARDVILLE WATER DEPT
OLD HICKORY WAT CO-UNION COUNTY

Sewer

SHARP'S CHAPEL ELEMENTARY SCHOOL

Internet

AT&T
Fixed Wireless up to 10 Mbps
Brightspeed
DSL up to 100 Mbps
MountaiNet Telephone Company
Fiber up to 1,000 Mbps
T-Mobile
Fixed Wireless up to 100 Mbps
UNITED STATES CELLULAR CORPORATION
Fixed Wireless up to 25 Mbps
Verizon
Fixed Wireless up to 50 Mbps
Xfinity
Cable up to 1,200 Mbps

Nearby ZIP codes

Frequently asked questions

How do I set up utilities when moving to 37866?

Contact each provider separately before your move-in date. Start with electric (City of Clinton - (TN)) since those typically need a few business days to activate. Water and sewer are often handled with one call to your local utility. Set up internet last since it may require an installation visit.

How much do utilities cost per month in 37866?

Total estimated monthly costs are around $292, which is about $91 less than the national average. Electricity is the biggest expense at roughly $175/month. Natural gas runs about $75. Water and sewer combined are around $43. Costs vary by home size, usage, and season. Estimates from U.S. Census ACS data.

Is electricity expensive in 37866?

No — electricity in ZIP code 37866 costs about 20% less than the national average. Based on 2023 NREL residential electricity rate data.

What internet providers are available in 37866?

ZIP code 37866 has strong broadband coverage. Providers include AT&T (Fixed Wireless up to 10 Mbps), Brightspeed (DSL up to 100 Mbps), MountaiNet Telephone Company (Fiber up to 1,000 Mbps), T-Mobile (Fixed Wireless up to 100 Mbps), UNITED STATES CELLULAR CORPORATION (Fixed Wireless up to 25 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.

What county is 37866 in?

ZIP code 37866 is in Union County, Tennessee.

Disclaimer: Provider information is sourced from federal databases including HIFLD, EPA SDWIS, FCC Broadband Data, and EIA-861. Utility cost estimates are from the U.S. Census Bureau American Community Survey 5-Year Estimates. Electric rates are based on 2023 NREL data. Coverage areas are approximate and may not reflect recent changes. Please verify directly with your provider.

Data sources: U.S. Census Bureau, NREL, EIA-861, HIFLD, EPA, FCC. Last updated: April 2026.